Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
901 PM AST Fri Apr 18 2025
AMZ711-190915-
/O.NEW.TJSJ.SC.Y.0022.250420T0000Z-250421T1000Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
901 PM AST Fri Apr 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM SATURDAY TO 6 AM AST
MONDAY...
* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and
seas 5 to 8 ft expected.
* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to
19.5N.
* WHEN...From 8 PM Saturday to 6 AM AST Monday.
* IMPACTS...Conditions will be hazardous to small craft due to
strong winds and choppy seas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Rip Current Statement
Coastal Hazard Message
National Weather Service San Juan PR
857 PM AST Fri Apr 18 2025
PRZ001-002-005-008-010-190900-
/O.NEW.TJSJ.RP.S.0019.250420T1000Z-250422T1000Z/
San Juan and Vicinity-Northeast-North Central-Northwest-
Mayaguez and Vicinity-
857 PM AST Fri Apr 18 2025
...HIGH RIP CURRENT RISK IN EFFECT FROM SUNDAY MORNING THROUGH
LATE MONDAY NIGHT...
* WHAT...Life-threatening rip currents are likely in the surf
zone.
* WHERE...Northern beaches of Puerto Rico, from Aguadilla to
Fajardo.
* WHEN...From Sunday morning through at least Monday night.
* IMPACTS...Rip currents can sweep even the best swimmers away
from shore into deeper water, where it becomes difficult to
return to safety.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
There is a high risk of rip currents.
Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins, jetties
and piers. Heed the advice of lifeguards, beach patrol flags and
signs.
If you become caught in a rip current, yell for help. Remain
calm, do not exhaust yourself and stay afloat while waiting for
help. If you have to swim out of a rip current, swim parallel to
shore and back toward the beach when possible. Do not attempt to
swim directly against a rip current as you will tire quickly.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service San Juan PR
501 AM AST Fri Apr 18 2025
AMZ711>745-PRZ001>013-190915-
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-
North Central-Central Interior-Ponce and Vicinity-Northwest-
Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
The nearshore and off shore Atlantic and Caribbean Coastal Waters-
501 AM AST Fri Apr 18 2025
This Hazardous Weather Outlook is for portions of Puerto Rico.
.DAY ONE...Today and Tonight
.Lightning...Isolated thunderstorms, particularly across
the island. Stay alert and be prepared to take shelter if storms
develop.
.Excessive Rainfall...Flooding in urban areas, roads, small
streams, and washes, particularly across the interior PR. There
is a low chance of isolated flash floods. Elsewhere, plan for
water ponding on roads and in poorly drained areas.
.Excessive Heat...This level of heat affects primarily those
individuals extremely sensitive to heat, especially when outdoors
without effective cooling and/or adequate hydration. These
conditions are most likely across western PR.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
The flood and lightning threat will remain through Saturday due
to the presence of moisture and an approaching trough. Marine and
coastal conditions will deteriorate during the weekend as a weak
northerly swell combines with windy conditions.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.
$$
Hazardous Weather Outlook
National Weather Service San Juan PR
501 AM AST Fri Apr 18 2025
AMZ716-726-VIZ001-002-190915-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
501 AM AST Fri Apr 18 2025
This Hazardous Weather Outlook is for portions of USVI.
.DAY ONE...Today and Tonight
.Lightning...Isolated thunderstorms, particularly across
the islands. Stay alert and be prepared to take shelter if storms
develop.
.Excessive Rainfall...Flooding in urban areas, roads, small
streams, and washes, particularly across the islands. There is a
low chance of isolated flash floods. Elsewhere, plan for water
ponding on roads and in poorly drained areas.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
The flood and lightning threat will remain through Saturday due
to the presence of moisture and an approaching trough. Marine and
coastal conditions will deteriorate during the weekend as a weak
northerly swell combines with windy conditions.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.
$$
